干河煤矿F14断层破碎带注浆治理工艺及效果研究

Study on Grouting Treatment Technology and Effect on Fault Fracture Zone of F14 in Ganhe Coal Mine

为合理留设防水煤柱,解放受水害影响煤炭资源,根据干河煤矿F14断层破碎带煤层赋存条件、含隔水层条件、地质及水文地质条件、以往实测数据等,采用理论分析及现场实测方法,提出注浆加固治理工艺,改造F14断层开采条件,在断层两侧和垂向上形成注浆隔水层。经现场施工表明:注浆治理有效起到隔水效果,可以安全回采。

In order to reasonably reserve waterproof coal pillars and liberate coal resources affected by water disasters,according to the occurrence conditions of coal seams in the fault fracture zone of F14 in Ganhe Coal mine,including water-proof layer conditions,geological and hydrogeological conditions,and previous measured data,theoretical analysis and field measurement methods are adopted to put forward grouting reinforcement treatment technology and transform the mining conditions of F14 fault.The grouting water barrier layer is formed on both sides of the fault and vertically.The field construction shows that the grouting treatment has an effective effect of water separation and can be safely mined.